Improvement in automatic fire-plugs or hydrants



D. MINICH.

, Autumat-i c N0. 160,941.

l,Fire-Plug or Hydrant.-

Patented Mmh 16I V1875.

miniemen 2 y Agentur THE GRAPHIC C0.PHOTO`-LITH.39 8141 PARK PLAGEJLY.

.. :DANIEL Minion, oF PHILADELPHIA', PENNSYLVANIA.

IMPROVEMENT IN AujroMAwcAFiRE-Piues 0R HvDRANTs.

Specification forming part o f Letters Patent No. 160,941, dated March 16, 1375; application filed February 26, 1875.-

To all whom t may concern: A

Be it known that I, DANIEL MINICH, of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Automatic Fire-Plugs, Hydrants, 8vo.; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use it, reference being had to the accompanying drawings, which form part of this specification, in which the figure is a vertical section of a lire-plug embodying my improvements.

rIhe object of my invention is to provide a lire-plug, hydrant, pump, or water-lifter, in which air will' be compressed, and its expansiv force utilized for throwing a stream of wa er.

l, Referring to the accompanying drawing, A

shows an air-tight metallic stock of cylindrical form, communicating with a water main or pipe by means of a branch, B, closed by a valve, a, operated by a screw-rod, a. C is a cylinder within the stock A, having a Xed diaphragm, D, holding a stuffing-box, d. Eis

a valve opening downwardly, and having its seat at e. E is a rod secured to the valve E, and passing through the diaphragm D and pistons F F1. F2 is a tube extending from the piston F to the piston Fl, being made fast to cach, and working in the stuffing-box d. Gis a valve in the piston F1 opening upwardly and having its seat at g. His a pipe extending outside of the stock A, and communicating with the chamber F3 through the opening h. H is a check-valve, having its seat at h2. I is a spiral spring for forcing down the pistons F F1, and K is a ring for closing the exhaustports k, the hub la of said ring encircling the stem el, and resting at times, as hereinafter explained, upon the shoulder or step e2. L is ton F is elevated, the piston F1, through the medium ofthe tube F2, is also raised, producing a suction through the pipe H, and drawing air into the chamber F3. While this suction or ingress of air is going on the valve G remains closed, while the valve H is open. The tube F2 on its upward motion meets the nut c3 on the rod E', and, continuing to ascend, draws up said rod, closing the valve E and opening the port l. At the same time the shoulder e2 meets the hub k1 of the exhaust-valve K, forcing up said valve and opening thel exhaustport k. As soon as the valve E closes, cutting off the pressure of the main, the spring I forces down the pistons F F1, being aided by the compressed air in the stock A after the first motion, expelling the air from the chamber F3, through the valve G, into the stock A, and the water from the chamber F4, into said stock, through the exhaust-port la. The piston F in its descent meets the shoulder e2 and iiange k2, forcing'down the ring K, closing the exhaust-ports 7c, and at the same time depressing the valve E away from its seat e. The valve E being thus opened, the pressure of the main is again brought to bear on the piston F, operating it as before, drawing air into the chamber F3, and ejecting it therefrom into the stock A, the successive and accumulated atmospheres thus injected into said stock being compressed into the space of one, the expansive force of this body of compressed air raising the water from the stock A through the pipe N, whence it issues in a powerful stream. A pressuregage and 'safety-valve should be located on the stock A to prevent injury from too great force of compressed air.

When the valve E is closed the port lis open, allowing the water from the main or pipe to rush through said port into the stock A, thus furnishing an ample supply of Water. Z is a pipe communicating with the upper part of the tank A and with the enlarged base L, so as to equalize the air-pressures in the said base, and thus facilitate the issuance of the water therefrom.

NJL is a two-seat valve to produce an intermittent and more impulsive flow through the pipe N, and N2 is a stop-cock for controlling said iow. On the upward motion of the pistaining the cylinder C, provided with pistons and valves, as set forth, of the branch B and discharge-pipe N.

4. In combination with the cylinder C and branch B, the base L, having an outlet-port, l, for the purpose described.

In testimony that I claim the foregoing I have hereunto set my hand this 15th day of February, 1875.

DANIEL MINIGH.

Witnesses M. DAM.. CoNNoLLY, CEAS. F. VAN HORN. 

